JP6874146B2 - Non-contact internal measuring device, non-contact internal measuring method, and internal measurement result display system - Google Patents

Description

The present invention relates to a non-contact internal measuring device, a non-contact internal measuring method, and an internal measurement result display system.

As a background technology in this technical field, for example, there is Japanese Patent Application Laid-Open No. 2016-53528 (Patent Document 1). Patent Document 1 states that "providing a method for measuring the water content of the stratum corneum using a terahertz wave" is a problem, and as a means for solving the problem, "the water content of the stratum corneum according to the present invention". The measuring method is a measuring method including a step of contacting a skin surface with a prism surface which is a terahertz wave emitting surface and irradiating a terahertz wave having a frequency of 0.1 THz or more and 3.0 THz or less to obtain an absorption coefficient. , A method using a prism having a refractive index of 2.0 or more, preferably 2.5 or more, and more preferably 3.0 or more. "

Further, for example, Japanese Patent Application Laid-Open No. 63-19016 (Patent Document 2) states, "In the present invention, the method for measuring the state of the epidermis, more specifically, the effect of epidermal keratin lesions, cream, etc. from the water content of the epidermal keratin. There is a description that "a method for measuring the state of epidermal keratin suitable for estimation" is stated, and "the object of the present invention is a method for measuring the state of epidermal keratin that can measure the loss (inductivity) of the epidermal keratin using a high frequency wave." Is to provide. "

Japanese Unexamined Patent Publication No. 2016-53528 Special Publication No. 63-19016

The human skin not only regulates the environment and temperature in the living body by cutaneous respiration and sweating, but also protects the internal tissues of the living body from external stimuli (foreign substances, bacteria, microorganisms, etc.). For this reason, it is important to obtain information on the amount of water inside the skin from the perspective of maintaining health, such as preventing heat stroke and preventing dry skin due to atopic dermatitis, and from the perspective of practical purposes such as evaluation of cosmetics and pharmaceuticals, and beauty. Is. It is also important from the above viewpoint to monitor daily changes in the skin by monitoring the moisture inside the skin and the condition of the skin (fineness of texture).

In the method of Patent Document 1, the water content inside the skin can be measured by bringing the prism into contact with the object to be measured. Therefore, there is a possibility of damaging the surface of the skin (during measurement) when the prism is brought into contact with it. Further, the method of Patent Document 1 cannot measure a state other than the water content of the stratum corneum.

The method of Patent Document 2 is to measure the water content of the stratum corneum by paying attention to the electrical properties of the skin. Therefore, depending on the condition of the surface of the skin (for example, the condition where cosmetics etc. are applied), the flow of electricity may be obstructed or promoted, and the measured value reflecting only the water content is accurately measured to determine the condition of the epidermal keratin. It cannot be measured.

That is, in order to measure the internal state of the object to be measured using the prior art, it is necessary to contact the object to be measured for measurement, but this will affect the surface of the object to be measured and damage it. there is a possibility. In addition, if measurement is performed using electrical properties, the accuracy of the measured value may be hindered depending on the surface condition of the object to be measured.

Therefore, an object of the present invention is to provide a non-contact internal measuring device or the like that can accurately measure the internal state of a measurement object without being affected by the surface condition.

The present invention relates to a non-contact internal measuring device, and includes an electromagnetic wave irradiating unit that irradiates an electromagnetic wave toward a measurement target and an electromagnetic wave receiving unit that detects an electromagnetic wave reflected by the measurement target. The irradiation unit is arranged so that the incident angle of the electromagnetic wave with respect to the measurement target is close to the Brewster angle, the electromagnetic wave receiving unit includes a plurality of electromagnetic wave detectors, and the size of each of the electromagnetic wave detectors is large. The electromagnetic wave detector is arranged so as to detect the intensity of an electromagnetic wave having a polarization different from that of the electromagnetic wave irradiated by the electromagnetic wave irradiation unit, which is equal to or less than the radius of the beam waist of the electromagnetic wave irradiated by the electromagnetic wave irradiation unit. It is characterized by being.

According to the present invention, the internal state of the object to be measured can be accurately measured without being affected by the state of the surface.

The schematic diagram which shows the structure of the non-contact internal measuring apparatus which observes the inside of the measurement object in Example 1. FIG. The figure which showed the relationship between the incident angle of p polarization and the detection signal amplitude in Example 1. FIG. The schematic diagram which shows the internal structure of the electromagnetic wave generation part in Example 1. FIG. The schematic diagram which shows the internal structure of the receiving part in Example 1. FIG. FIG. 6 is a schematic view showing an example in which the receiver in the first embodiment is composed of one light receiving element. FIG. 6 is a schematic diagram showing an example in which the receiver according to the first embodiment is composed of a plurality of light receiving elements. The schematic diagram of the measurement target in Example 1. The schematic diagram which shows the propagation process of the electromagnetic wave of the measurement target in Example 1. FIG. The flowchart which shows the electromagnetic wave intensity measurement operation of the non-contact internal measuring apparatus in Example 1. FIG. The schematic diagram of the inside of the measurement target in Example 2. The schematic diagram which shows the propagation process of the electromagnetic wave of the measurement target in Example 2. FIG. The schematic diagram which shows the structural example of the receiver in Example 2. FIG. The schematic diagram which shows another configuration example of the receiver in Example 2. FIG. FIG. 5 is a flowchart showing an electromagnetic wave intensity and polarization measurement operation of the non-contact measuring device inside the measurement target in the second embodiment. The schematic diagram of the measurement object consisting of the multilayer film structure in Example 2. The schematic diagram which shows the propagation process of the electromagnetic wave inside the measurement object which consists of a multilayer film structure in Example 2. FIG. The schematic diagram which shows the example of the usage mode of the skin information acquisition terminal in Example 3. FIG. The schematic diagram which shows the arrangement example of the electromagnetic wave generation part, the receiving part and the image taking part of the skin information acquisition terminal in Example 3. FIG. The schematic diagram of the display part of the skin information acquisition terminal in Example 3. The schematic diagram which showed an example of the functional structure of the skin information acquisition terminal in Example 3. The flowchart which shows the example of the electromagnetic wave intensity and polarization measurement operation of the skin information acquisition terminal in Example 3. The schematic diagram which showed another example of the functional structure of the skin information acquisition terminal in Example 3. FIG. The flowchart which shows another example of the electromagnetic wave intensity and polarization measurement operation using the skin information acquisition terminal in Example 3. The schematic diagram which shows another example of the usage mode of the skin information acquisition terminal in Example 3. FIG. The schematic diagram which shows another example of arrangement of the electromagnetic wave generation part, the receiving part, and the image taking part of the skin information acquisition terminal in Example 3. FIG. FIG. 6 is a schematic diagram showing another example of the configuration of the non-contact internal measuring device for observing the inside of the measurement target in the fourth embodiment. FIG. 6 is a schematic view of the measurement position when the electromagnetic wave intensity and the measurement position are corrected in the polarization measurement using the skin information acquisition terminal in the fourth embodiment when the measurement position is shifted to the back side. FIG. 6 is a schematic view of the measurement position when the electromagnetic wave intensity and the measurement position are corrected in the polarization measurement using the skin information acquisition terminal in the fourth embodiment when the measurement position is shifted to the front side. The flowchart which shows the example of the electromagnetic wave intensity and polarization measurement operation of the skin information acquisition terminal in Example 4. The schematic diagram which shows the example of the usage mode of the breath analysis terminal in Example 5. FIG. 6 is a schematic diagram of an arrangement of an electromagnetic wave generating unit, a receiving unit, and an imaging unit of the breath analysis terminal according to the fifth embodiment. The schematic diagram of the display part of the arrangement of the breath analysis terminal in Example 5. The schematic diagram which showed an example of the structure of the exhalation measurement terminal in Example 5. The schematic diagram which showed an example of the functional structure of the breath analysis terminal in Example 5. The flowchart of the breath measurement using the breath analysis terminal in Example 5. FIG.

Hereinafter, embodiments of the non-contact internal measuring device according to the present invention will be described with reference to the drawings. The non-contact internal measuring device according to the present invention uses electromagnetic waves in a frequency band transmitted through makeup, clothing, plastic, etc. to measure the internal state of a measurement target in a non-contact and accurate manner. Here, the measurement target when the non-contact internal measuring device is used is, for example, the human body. The frequency band of the electromagnetic wave used in the non-contact internal measuring device is, for example, 10 GHz or more and 30 THz or less. The non-contact internal measuring device according to the present invention can measure the internal state of the human body, which is the object of measurement, in a non-contact manner without affecting the surface of the skin. Further, the non-contact internal measuring device according to the present invention can perform accurate internal measurement with little influence on the measurement result due to the surface condition even if cosmetics or the like are applied to the skin surface. Therefore, according to the non-contact internal measuring device according to the present invention, the amount of water inside the skin and the state of rough skin are accurately measured while having little influence on the skin and avoiding the influence on the condition of the skin surface. be able to.

FIG. 1 is a diagram showing a configuration of a first embodiment of a non-contact internal measuring device according to the present invention. As shown in FIG. 1, the measuring device 100 according to the present embodiment includes an electromagnetic wave generating unit (radio transmitter) 2 which is an electromagnetic wave irradiating unit that emits an electromagnetic wave irradiating the measurement object 1, and an electromagnetic wave reflected by the measuring object 1. A receiver 3 which is an electromagnetic wave receiving unit for detecting an electromagnetic wave, a control unit (main controller) 4 which controls the operation of each of the electromagnetic wave generating unit 2 and the receiving unit 3, and an electromagnetic wave signal received by the receiving unit 3. A signal processing unit (signal processor) 5 for processing is provided.

The measurement object 1 is an object whose internal state is the measurement target area, and in the description of this embodiment, its thickness is “d”. In this embodiment, human skin is taken as an example of the measurement target 1.

The electromagnetic wave emitted from the electromagnetic wave generating unit 2 is, for example, an electromagnetic wave having a frequency band of 10 GHz or more and 30 THz or less and having a frequency easily absorbed by an internal component of the measurement object 1. Therefore, even if clothing, plastic, cosmetics, or the like is interposed between the electromagnetic wave generating unit 2 and the surface of the measurement object 1, the electromagnetic wave emitted from the electromagnetic wave generating unit 2 is irradiated to the surface of the measurement object 1. It also reaches the inside. The incident angle θ when the electromagnetic wave emitted from the electromagnetic wave generating unit 2 irradiates the measurement object 1 is adjusted to be the Brewster angle described later. In the following description, as shown in FIG. 1, the electromagnetic wave is drawn by the broken line arrow line.

The receiving unit 3 has a function of detecting an electromagnetic wave reflected from the measurement object 1. The signal processing unit 5 is notified of the detection result such as the intensity of the electromagnetic wave detected by the receiving unit 3.

The control unit 4 controls the operation of the electromagnetic wave generation unit 2 to emit an electromagnetic wave to the measurement object 1. Further, the control unit 4 controls the operation of the receiving unit 3 and detects the electromagnetic wave reflected by the measurement object 1. Further, the control unit 4 controls the operation of the signal processing unit 5 based on the electromagnetic wave intensity of the electromagnetic wave detected by the receiving unit 3, and causes the signal processing unit 4 to calculate the measurement result.

The signal processing unit 5 calculates the measured value related to the internal state of the measurement object 1 based on the information such as the intensity of the electromagnetic wave detected by the receiving unit 3 under the control of the control unit 4. Each of the control unit 4 and the signal processing unit 5 is composed of a circuit that realizes each function of the control unit 4 and the signal processing unit 5, an MPU (microprocessor unit), a CPU (central processor unit), and a circuit. May be done.

The electromagnetic wave applied to the measurement object 1 is a p-polarized wave (or p-polarized wave) electromagnetic wave. The reflectance of a p-polarized electromagnetic wave becomes substantially zero when the angle of incidence θ on the interface having different refractive indexes reaches a certain angle. The angle at which this reflectance becomes almost zero is called the "Brewster's angle".

In FIG. 2, the reception (detection) signal received by the receiving unit 3 is the electromagnetic wave reflected on the surface of the measuring object 1 with the incident angle θ at which the electromagnetic wave emitted by the electromagnetic wave generating unit 2 is incident on the measuring object 1 as the horizontal axis. This is an example of a graph when the amplitude is the vertical axis. Since the electromagnetic wave emitted from the electromagnetic wave generating unit 2 is a p-polarized wave (or p-polarized wave) electromagnetic wave, as shown in the graph of FIG. 3, p on the surface of the measurement object 1 (the boundary surface having a different refractive index). There is an incident angle θ at which the reflectance of polarized waves is approximately zero. This angle is called "Brewster's angle".

The measuring device 100 adjusts the arrangement of the electromagnetic wave generating unit 2 so that the incident angle θ at which the electromagnetic wave emitted by the electromagnetic wave generating unit 2 irradiates the measurement object 1 is “a value near the Brewster angle”. Is. The "value near the Brewster's angle" means, for example, a value in the range of about ± 10 degrees (60 to 80 degrees) when the Brewster's angle is 70 degrees. In the embodiment according to the present invention, the measuring device 100 is obtained by adjusting the arrangement of the electromagnetic wave generating unit 2 and the receiving unit 3 so that the incident angle θ of the electromagnetic wave irradiating the measurement object 1 is close to the Brewster angle. Use. The electromagnetic wave (p-polarized wave) emitted by the electromagnetic wave generating unit 2 included in the measuring device 100 propagates inside with almost no surface reflection by the measuring object 1, and is a boundary surface at the thickness d of the measuring object 1. Reflects on. When the reflected electromagnetic wave is received by the receiving unit 3 and signal processing is performed, a measured value reflecting the internal state of the measurement object 1 can be obtained. Therefore, if the electromagnetic wave generating unit 2 is arranged so that the incident angle θ of the electromagnetic wave from the electromagnetic wave generating unit 2 to the measuring object 1 becomes the Brewster angle like the measuring device 100, the inside of the measuring object 1 is provided. Is suitable for sensing.

In order to receive the electromagnetic wave propagated and reflected inside the measurement object 1, the receiving unit 3 makes the angle refracted on the surface of the measurement object 1 equal to the value near the Brewster angle. Is located in.

The intensity of the electromagnetic wave emitted by the electromagnetic wave generating unit 2 is defined as the emitted electromagnetic wave intensity I _{in, and} the coefficient at which the electromagnetic wave is absorbed and attenuated by the internal component of the measurement object 1 is defined as the absorption coefficient α ₀ . In this case, the reflected wave intensity I _o, which has been reflected inside the measurement object 1 in the thickness d can be determined according to Equation 1 below.

The value to be measured by the measuring device 100 is the absorption coefficient α ₀ of the measurement object 1. However, in Equation 1, the thickness d of the measurement object 1 is not always known. _{Therefore, the absorption coefficient α 0} cannot be calculated based on the intensity of the electromagnetic wave unless the thickness d of the measurement object 1 is specified. However, when the measurement object 1 is monitored and its state (or time) change is observed, the thickness d of the measurement object 1 may be regarded as a fixed value that does not change. Even if different measurement objects 1 are monitored, the thickness d of the measurement object 1 can be obtained by managing the measurement objects in advance and using the time change rate of the measurement value or the deviation of the measurement value for each measurement time as the measurement value. It can be treated as if it does not change. Therefore, if "α ₀ · d" in Equation 1 is newly considered as "α'", Equation 1 can be transformed as in Equation 2 below.

According to Equation 2, the absorption coefficient α of the measurement object 1 is measured by measuring _{the emitted electromagnetic wave intensity I in of the} electromagnetic wave emitted from the electromagnetic wave generating unit 2 and _{the reflected electromagnetic wave intensity I o} of the electromagnetic wave received by the receiving unit 3. ₀ can be easily calculated as the absorption coefficient α'. By operating the measuring device 100 so as to calculate the absorption coefficient α', the internal state of the measurement object 1 can be measured in a non-contact manner.

Next, the internal structure of the electromagnetic wave generating unit 2 included in the measuring device 100 according to the first embodiment will be described. FIG. 3 is a diagram showing an example of the internal structure of the electromagnetic wave generating unit 2. As shown in FIG. 3, the electromagnetic wave generating unit 2 includes an electromagnetic wave generator 7 and at least one lens 8 inside. The electromagnetic wave generator 7 emits and stops electromagnetic waves having a predetermined frequency under the control of the control unit 4. For the electromagnetic wave generator 7, for example, a Gunn diode, an impat diode, a tannet diode, a resonance tunnel diode, or the like can be used.

The lens 8 is formed so as to have _{a radius ω 0} of the beam waist of the electromagnetic wave emitted from the electromagnetic wave generator 7. Since the measuring device 100 is not in contact with the measuring object 1, the distance between the electromagnetic wave generating unit 2 and the surface of the measuring object 1 at the time of measurement may not be stable. It is necessary to prevent the measured values from fluctuating due to this effect. Assuming that the wavelength of the electromagnetic wave emitted from the electromagnetic wave generator 7 is λ, the region Z _R that can be regarded as a substantially parallel electromagnetic wave is as shown in Equation 3 below.

As is clear from Equation 3, the electromagnetic wave emitted from the electromagnetic wave generator 7 is diverged by the square of _{the radius ω 0 of the beam waist of the electromagnetic wave emitted from the electromagnetic wave generator 7.} In order to deal with the deviation of the distance between the measuring device 100 and the object 1 to be measured, which changes every time the measurement is performed, the sensitivity to the measurement result with respect to the deviation of the distance may be reduced. As a countermeasure, it can be solved by increasing _{the radius ω 0 of the beam waist to a certain large value.}

For example, assuming that the beam waist is 1 cm and the frequency of the electromagnetic wave emitted from the electromagnetic wave generating unit 2 is 0.1 THz (100 GHz), the Z _R is 10.5 cm according to Equation 3. In this case, if it is within a range of 10.5 cm from the measurement surface of the measurement object 1, it can be regarded as a substantially parallel electromagnetic wave. Therefore, the distance between the measuring device 100 and the surface of the measuring object 1 may be within 10.5 cm. If the measurement is performed while holding the portable measuring device 100 so that the distance from the measurement object 1 is within 10.5 cm, the irradiated electromagnetic wave can be used within a range that can be regarded as a parallel electromagnetic wave. This makes it possible to reduce the sensitivity of the influence on the measurement result on the distance deviation in the focal direction due to camera shake or the like when the measuring device 100 is held in the hand and the skin condition is measured.

Next, the internal structure of the receiving unit 3 included in the measuring device 100 according to this embodiment will be described. FIG. 4 is a diagram showing an example of the internal structure of the receiving unit 3. As shown in FIG. 4, the receiving unit 3 includes a receiver (radio detector) 9 and a lens 10. The receiver 9 receives and stops electromagnetic waves by the control unit 4. The lens 10 serves to collect electromagnetic waves on the surface of the receiver 9. For the receiver 9, for example, a Schottky barrier diode, a resonance tunnel diode, a high mobility transistor (HEMT), a heterobarrier diode, a carbon nanotube, or the like can be used.

Next, an example of the internal structure of the receiver 9 according to the first embodiment will be described. FIG. 5A is an example in which the receiver 9 according to the first embodiment is configured by using one receiver element 90. FIG. 5B is an example in which the receiver 9 according to the first embodiment is configured by using a plurality of receiving elements 90. The arrow line A of the alternate long and short dash line shown in FIGS. 5A and 5B illustrates the polarization direction of the electromagnetic wave that can be received by the receiving element 90. Similarly, the arrow line B of the alternate long and short dash line exemplifies the polarization direction of the electromagnetic wave emitted from the electromagnetic wave generation unit 2.

Configuration example shown in FIG. 5A, the electromagnetic waves that are formed in the radial omega ₀ of the beam waist, when received by the receiver 9 is reflected by the measurement object 1, the radial omega ₀ 'of the beam waist The configuration is such that a detection signal is obtained by one receiving element 90. Configuration example shown in FIG. 5B, with respect to the radial omega ₀ 'of the beam waist, and added by the adder 91 a detection signal of a plurality of receiving elements 90 which are arranged in a planar, the sum of the detection signals It is a configuration that obtains a considerable detection signal. The receiver 9 functions as an electromagnetic wave detector.

As described with reference to Equation 3, the resolution that can be measured using the measuring device 100 is determined by the wavelength λ of the electromagnetic wave emitted by the electromagnetic wave generating unit 2. 'If the receiver 9 relative small, as shown in FIG. 5A, in the receiving surface for receiving electromagnetic waves, the receiving element 90 radially omega ₀ of the beam waist' radius omega ₀ of the beam waist may be disposed on the inside of the ..

Further, as shown in FIG. 5B, the receiver 9 may be configured by arranging a plurality of receiving elements 90 on the receiving surface of the electromagnetic wave. Each of the plurality of receiving elements 90 is arranged inside a circle having a diameter corresponding to the beam waist (2ω ₀ '), and the sum of the detection signals of each receiving element 90 may be taken out as a detection signal. As a result, the reception area of electromagnetic waves can be expanded, and the signal component of the signal-to-noise ratio can be improved.

FIG. 6A is an example of a schematic diagram of the measurement object 1. FIG. 6B is an example of a schematic diagram showing the propagation process of the electromagnetic wave inside the measurement object 1 in more detail. Here, the refractive index of the _{object to be measured 1} is "n 1", and the birefringence of the object 1 to be measured is "n ₂ ".

As shown in FIG. 6A, the electromagnetic waves reflected at the interface on the incident surface side of the object to be measured 1 (the interface _{between the refractive index n 1} and the double refractive index n ₂ ) include the reflected electromagnetic wave intensity I _o1 and the reflected electromagnetic wave intensity I. There is _o2. As shown in FIG. 6B, the reflected wave intensity I _o1 is the intensity of electromagnetic waves of reflected at the interface between the refractive index n ₁ and the birefringent index n _2. The reflected electromagnetic wave intensity I _o2 passes through the interface of the refractive index n ₁ and propagates inside the measurement object 1, and the interface on the back surface side of the measurement object 1 (the interface between the double refractive index n ₂ and the refractive index n _1). ) Is the intensity of the electromagnetic wave reflected. The thickness of the measurement object 1 is "d".

If the incident angle θ is the Brewster angle, the reflected electromagnetic wave intensity _Io1 in the surface reflection of the object 1 to be measured can be regarded as substantially zero. That is, the electromagnetic wave received by the receiving unit 3 can be regarded as being due to the intensity of the electromagnetic wave absorbed and scattered inside the measurement object 1 (reflected electromagnetic wave intensity _Io2). Therefore, the absorption coefficient α'of the measurement object 1 can be calculated by the calculation based on the equation 2, and the internal state of the measurement object 1 can be measured based on the absorption coefficient α'.

Next, the operation flow of the measuring device 100 will be described with reference to the flowchart of FIG. Hereinafter, the flowchart described in the present specification is one of the embodiments of the non-contact internal measurement method according to the present invention. Each processing step according to this embodiment is realized by having the control unit 4 included in the measuring device 100 execute a computer program using the hardware resources of the measuring device 100.

First, the control unit 4 executes a frequency setting step of setting the electromagnetic wave generator 7 to generate an electromagnetic wave at a predetermined frequency (S701). The frequency suitable for measuring the inside differs depending on the difference in the internal component of the object 1 to be measured. Therefore, a frequency suitable for measuring the internal component of the object to be measured 1 may be arbitrarily set.

Subsequently, the control unit 4 executes an electromagnetic wave irradiation start step so that the electromagnetic wave generation unit 2 irradiates the measurement object 1 with an electromagnetic wave having a predetermined frequency and a predetermined intensity (S702). In S702, an electromagnetic wave having an emitted electromagnetic _{wave intensity of I in} is emitted from the electromagnetic wave generating unit 2.

Subsequently, the control unit 4 executes an electromagnetic wave reception start step of starting the reception unit 3 to receive the electromagnetic wave (S703). In S703, the plurality of receivers 9 receive the electromagnetic waves reflected from the object 1 to be measured, and acquire a detection signal corresponding to the sum of the _{reflected electromagnetic wave intensity Io1} and the reflected electromagnetic wave intensity _Io2.

Subsequently, the signal processing unit 5 uses the sum of the detection signals calculated by the receiving unit 3 and the emitted electromagnetic wave intensity I _in of the electromagnetic wave emitted from the electromagnetic wave generating unit 2, and the measurement target 1 is based on the equation 2. The absorption coefficient calculation step for calculating the absorption coefficient α'is executed (S704).

By the above processing, it is possible to measure a value indicating the internal state of the measurement object 1 using the measuring device 100 at a certain time. For example, if the inside of the measurement object 1 is water, the absorption coefficient α'has no peak regardless of the frequency of the electromagnetic wave in the frequency band from 10 GHz or more to 30 THz or less. That is, if the inside of the measurement object 1 is water, the spectrum is broad at any frequency in the frequency band from 10 GHz or more to 30 THz or less. Therefore, the frequency set in S701 can be any of the above ranges. , Moisture can be detected. In this case, it is desirable to set the same frequency as the frequency at that time when comparing with the measured value measured in the past. If the control unit 4 holds the past measurement results, it is possible to calculate the change in the water content after S704.

If the inside of the object to be measured 1 is water vapor, a peak occurs in the absorption coefficient α'depending on the frequency of the electromagnetic wave. Specifically, it is known that the absorption coefficient α'peaks when the frequency is 0.56 THz or 0.75 Hz. Therefore, if it is known in advance that the inside of the measurement object 1 is water vapor, the frequency set by the control unit 4 in the electromagnetic wave generator 7 in S701 may be set to 0.56 THz or 0.75 Hz.

The present invention is not limited to the above-described examples, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations. Further, it is possible to replace a part of the configuration of the embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration. Furthermore, this embodiment has been illustrated refractive index inside of the measurement object 1 as birefringence n _2, it is possible with the same configuration is applicable to refractive index that does not have an absorption coefficient. Further, as for the polarization of the electromagnetic wave emitted from the electromagnetic wave generation unit 2 to the measurement object 1, a polarization element (filter or the like) may be used to generate p-polarization.

Next, a second embodiment of the non-contact internal measuring device according to the present invention will be described. The difference from the first embodiment described above is that the receiver 9 has at least two or more polarization components including the polarization direction (vertical direction) perpendicular to the polarization direction of the electromagnetic wave applied to the measurement object 1. The point is that it is provided with a configuration capable of acquiring such polarization (or polarization) information. Since the other configurations are the same as those of the first embodiment already described, the following description will focus on the differences from the first embodiment. In this embodiment, the electromagnetic wave emitted from the electromagnetic wave generating unit 2 to the measurement object 1 is p-polarized.

FIG. 8A is an example of a schematic diagram of the measurement object 1 according to the second embodiment. FIG. 8B is a schematic diagram showing in detail the propagation process of the electromagnetic wave in consideration of the polarization direction inside the measurement object 1. As shown in FIGS. 8A and 8B, the refractive index of _{the measurement object 1} is "n 1", and the birefringence of the measurement object 1 is "n ₂ ". In FIG. 8, the polarization direction of the electromagnetic wave is clearly indicated by the arrow of the alternate long and short dash line.

Here, focusing on the polarization components of each of the electromagnetic wave of the reflected wave intensity I _o1 and reflection electromagnetic wave intensity I _'o2, polarized component of the reflected wave intensity I _o1 is, p polarization is maintained. On the other hand, _{the polarization component of the reflected electromagnetic wave intensity I'o2} changes as it propagates inside the measurement object 1 having birefringence. In the configuration described in the first embodiment, when the incident angle θ of the irradiated electromagnetic wave deviates from the Brewster angle, the reflected electromagnetic wave intensity _Io1 is also detected by the receiving unit 3. Therefore, in order to enhance the robustness against "deviation" from the Brewster angle, the polarization (p-polarization) of the electromagnetic _{wave of the reflected electromagnetic wave intensity Io1 reflected on the surface of the measurement object 1 and the polarization due to the internal components.} The change in the wave may be detected by using the information on the polarization component. By detecting in this way, it is possible to extract only the detection signal based _{on the reflected electromagnetic wave intensity I'o2} , which does not depend on the reflected electromagnetic wave intensity _Io1.

The internal structure of the receiver 9 according to the present embodiment that enables the above measurement will be described with reference to FIG. FIG. 9A is an example of a receiver 9 composed of a plurality of receiving elements 90 arranged in a plane. FIG. 9B is another example of the receiver 9 composed of a plurality of receiving elements 90 arranged in a plane. The arrow line A of the alternate long and short dash line shown in FIGS. 9A and 9B illustrates the polarization direction of the electromagnetic wave that can be received by the receiving element 90. Similarly, the arrow line B of the alternate long and short dash line exemplifies the polarization direction of the electromagnetic wave emitted from the electromagnetic wave generation unit 2.

In the configuration shown in FIG. 9A, the receiving element 90 is arranged so as to detect an electromagnetic wave having the same polarization as the polarization of the electromagnetic wave emitted from the electromagnetic wave generating unit 2 and an electromagnetic wave rotated 90 degrees with respect to the polarization. doing. In the configuration shown in FIG. 9B, an electromagnetic wave having the same polarization as the polarization of the electromagnetic wave emitted from the electromagnetic wave generation unit 2, an electromagnetic wave rotated 90 degrees with respect to the polarization, and ± 45 with respect to the polarization. The receiving element 90 is arranged so as to detect the electromagnetic wave rotated by the degree. In the example shown in FIG. 9B, the receiving elements 90 are arranged radially.

The receiver 9 shown in FIGS. 9A and 9B includes an adder 91 that adds detection signals from receiving elements 90 having the same polarization direction. The configuration shown in FIG. 9A includes an adder 91a and an adder 91b. The adder 91a outputs the sum of the detection signals of the five receiving elements 90 that detect the same polarization as the electromagnetic wave applied to the measurement object 1 from the electromagnetic wave generation unit 2. The adder 91b outputs the sum of the detection signals of the four receiving elements 90 that detect the electromagnetic wave rotated by 90 degrees with respect to the polarization of the electromagnetic wave irradiated to the measurement object 1 from the electromagnetic wave generating unit 2.

According to the receiver 9 according to the present embodiment, the reflected electromagnetic wave intensity I that does not depend on the _{reflected electromagnetic wave intensity I o1} is used by using the sum signal 1 output from the adder 91a and the sum signal 2 output from the adder 91b. 'It is possible to extract only the detection signal by _o2. Here, the number of receiving elements 90 used for detecting each polarization is not limited to the above number, and only a certain polarization may be detected from the measurement object 1.

In the configuration shown in FIG. 9B, the receiver 9 includes an adder 91a, an adder 91b, an adder 91c, and an adder 91d. The adder 91a outputs a sum signal 1 which is the sum of the detection signals of the three receiving elements 90 that detect the same polarization as the electromagnetic wave applied to the measurement object 1 from the electromagnetic wave generation unit 2. The adder 91b and the adder 91c are detection signals of two receiving elements 90 in each direction for detecting an electromagnetic wave rotated by ± 45 degrees with respect to the polarization of the electromagnetic wave radiated from the electromagnetic wave generating unit 2 to the measurement object 1. The sum signal 2 and the sum signal 3 which are the sums of the above are output. The adder 91d is a sum signal 4 which is the sum of the detection signals of the two receiving elements 90 that detect the electromagnetic wave rotated by 90 degrees with respect to the polarization of the electromagnetic wave radiated from the electromagnetic wave generating unit 2 to the measurement object 1. Is output.

According to the receiver 9 according to this embodiment, the sum signal 1, and the sum signal 2, and the sum signal 3 does not depend on the reflected electromagnetic wave intensity I _o1 using the sum signal 4 detected by the reflected wave intensity I _'o2 Only the signal can be taken out. Here, the number of receiving elements 90 used for detecting each polarization is not limited to the above number, and only a certain polarization is detected among the electromagnetic waves reflected from the measurement object 1. May be good. As a result, among the signals received by the receiving unit 3, _{the p-polarized wave of the reflected electromagnetic wave intensity Io1} and the other reflected electromagnetic wave intensity can be measured for each polarized wave.

Next, the operation flow of the measuring device 100 according to this embodiment will be described with reference to the flowchart of FIG. First, the control unit 4 executes a frequency setting step of setting the electromagnetic wave generator 7 to generate an electromagnetic wave at a predetermined frequency (S1001). The frequency suitable for measuring the inside differs depending on the difference in the internal component of the object 1 to be measured. Therefore, a frequency suitable for measuring the internal component of the object to be measured 1 may be arbitrarily set.

Subsequently, the control unit 4 executes an electromagnetic wave irradiation start step so as to irradiate the electromagnetic wave generation unit 2 with an electromagnetic wave having an emitted electromagnetic wave intensity I _{in at a predetermined frequency (S1002).}

Subsequently, the control unit 4 executes an electromagnetic wave reception start step of starting the reception unit 3 to receive the electromagnetic wave (S1003). In S1003, the sum signal 4 is calculated from the sum signal 1 described above based on the _{intensity of the electromagnetic wave (reflected electromagnetic wave intensity Io1} and reflected electromagnetic wave intensity _Io2 ) received by each of the plurality of receivers 9.

Subsequently, the signal processing unit 5 calculates the reflected electromagnetic wave intensity Io1 or the reflected electromagnetic wave intensity I'o2 of the electromagnetic wave of each polarized wave from the sum signal calculated in S1003, and calculates the polarization component related to each polarized wave. The step of calculating the reflected electromagnetic wave intensity and the polarization component is executed (S1004).

Subsequently, the signal processing unit 5 executes an absorption coefficient calculation step of calculating the absorption coefficient α'for each polarized light based on the electromagnetic wave intensity of each polarized light calculated in S1004 (S1005).

By the above processing, it is possible to measure a value indicating the internal state of the measurement object 1 using the measuring device 100 at a certain time. For example, if the inside of the measurement object 1 is water, the absorption coefficient α'has no peak regardless of the frequency of the electromagnetic wave in the frequency band from 10 GHz or more to 30 THz or less. That is, when the inside of the measurement object 1 is water, the frequency set in S1001 may be any of the above ranges because the spectrum is broad at any frequency in the frequency band from 10 GHz or more to 30 THz or less. In this case, it is desirable to set the same frequency as the frequency at that time when comparing with the measured value measured in the past. If the control unit 4 holds the past measurement results, it is possible to measure the change in the amount of water and the roughness of the skin (disturbance in the polarization direction) after S1005.

The present invention is not limited to the above-described examples, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations. Further, it is possible to replace a part of the configuration of the embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration. Furthermore, this embodiment is internal refractive index of the measurement object 1 showed birefringence n _2, it is possible with the same configuration is applicable to refractive index that does not have an absorption coefficient.

Further, in order to enhance the robustness with respect to the Brewster angle, as shown in FIG. 9A, the electromagnetic wave obtained by rotating the receiving element 90 by 90 degrees with respect to the polarization of the electromagnetic wave emitted from the electromagnetic wave generating unit 2 is detected. May be placed in. Further, although the number of receiving elements 90 is set to 9 in this embodiment, the number is not limited to this, and one receiving element 90 may be composed of a plurality of receivers.

In FIGS. 6 and 8 used in Example 1 and Example 2, the case where the measurement object 1 is a single layer is illustrated. The measuring device 100 can also be applied to the case of a multi-layer laminated structure as shown in FIG. As shown in FIG. 11A, it is assumed that the measurement object 1a, which is another example of the measurement object 1, has three layers such as the first layer 11a, the second layer 12a, and the third layer 13a. Then, as shown in FIG. 11B , when the refractive indexes of each layer are different, electromagnetic waves are reflected at the boundary surface. That is, the intensity of the reflected electromagnetic wave received by the receiving unit 3 is the sum of the intensities of the reflected electromagnetic waves reflected at the boundary surface of each layer.

Examples of the laminated structure include skin. The skin has a structure in which layers of the stratum corneum, epidermis layer, dermis layer, and subcutaneous tissue layer are laminated, and collagen, which occupies more than 70% of the dermis layer, is a fibrous protein and has birefringence properties. ..

When the amount of water in the stratum corneum decreases and the environment (state) inside the skin becomes dry, electromagnetic waves are not absorbed by the water. In this state, the electromagnetic waves reach the inside of the skin more than the healthy skin. As a result, the receiving unit 3 receives an electromagnetic wave including a change in polarization due to birefringence of collagen, which occupies 70% of the dermis layer. That is, the polarization information can be monitored, and thus the change of state of the skin can be monitored.

On the other hand, since the skin dries and the amount absorbed by water in the stratum corneum decreases and reaches the inside of the skin more, the thickness d of the measurement object 1 cannot be regarded as constant. In that case, it is possible to know the change in the amount of water in the stratum corneum by fixing the polarization that monitors the absorption by water in the stratum corneum to a certain polarization and monitoring the relative change in the intensity of the polarization. Is.

Next, an embodiment of the internal measurement result display system according to the present invention will be described. In this embodiment, the skin information acquisition terminal 103, which is an example of the internal measurement result display system, will be described. FIG. 12 shows a usage mode of the skin information acquisition terminal 103. The skin information acquisition terminal 103 is a portable information processing device having a function of measuring based on the internal state of the skin of the user 25 (the skin of the face in FIG. 12) and displaying the result. By holding the skin information acquisition terminal 103 at a distance from the side surface of the user 25 and performing a predetermined operation without contact, the internal state of the skin of the user 25 (the amount of water and the degree of rough skin) is measured. be able to.

FIG. 13A is a diagram showing the appearance of the skin information acquisition terminal 103, and is a diagram showing the arrangement of the configuration on the side facing the user 25 including the measurement object 1. FIG. 13B is a diagram showing the arrangement of the configuration on the side where the measurement result is displayed. The skin information acquisition terminal 103 according to this embodiment is an example in which the display side and the sensor side are arranged on different surfaces.

As shown in FIG. 13A, an electromagnetic wave generating unit 2 and a receiving unit 3 included in the measuring device 100 are arranged on the side facing the measurement target. The electromagnetic wave generating unit 2 emits an electromagnetic wave toward the measurement target, and the receiving unit 3 receives the electromagnetic wave reflected by the measurement target. As described above, the electromagnetic wave generating unit 2 and the receiving unit 3 have the incident angle θ of the electromagnetic wave emitted from the electromagnetic wave generating unit 2 with respect to the measurement object 1 set to a value near the Brewster angle, and the reflected wave of this electromagnetic wave is generated. They are arranged in a positional relationship so that they can be received. Further, a lens of an image capturing unit 101, which is a built-in camera, and a distance measuring unit 102 are also arranged on the side facing the measurement target.

Then, as shown in FIG. 13B, the display unit (display) 16 is arranged on the side opposite to the surface facing the measurement target and on which the result is displayed. In FIG. 13B, the display unit 16 displays an image in which the measurement position marker 27 indicating the measurement position is superimposed on the photograph 26 in which the measurement target is taken. The measurement position marker 27 indicates that the same location as the previous measurement is being measured.

FIG. 14 is a diagram showing a functional configuration of the skin information acquisition terminal 103 in this embodiment. The outline of the operation of the skin information acquisition terminal 103 will be described with reference to FIG.

The skin information acquisition terminal 103 captures the measurement site of the user 25 with the image capturing unit (camera) 101, executes an image analysis process for analyzing the photograph, and displays ultraviolet rays, dryness, stress, etc. as the analysis result. It can be displayed in unit 16. Further, the skin information acquisition terminal 103 acquires the measured values of the moisture inside the skin and the skin condition (fineness of texture) of the measurement site by the measuring device 100, and displays the result of analyzing the measured values on the display unit 16. To do. At this time, as illustrated in FIG. 13B, both Photo 26 and the determination result (or display such as caution for drying, moisturizing amount, and change width) are displayed.

As the image capturing unit 101, for example, an RGB camera having a sensitivity to a visible light wavelength, a camera having a sensitivity to infrared rays, an RGB camera having a sensitivity to a wavelength from infrared rays to visible light, and the like can be used. Further, as the image capturing unit 101, an RGB camera having a sensitivity to a wavelength of ultraviolet rays from visible light or a wavelength of ultraviolet rays from infrared rays to visible light can also be used.

The distance measuring unit (distance sensor) 102 measures the distance between the measurement target and the skin information acquisition terminal 103. The data regarding the measured distance is stored in the data holding unit 160. The distance measuring unit 102 can estimate the position of the skin information acquisition terminal 103 at the time of measurement, and thereby it is possible to know that the same position as the previous time is being measured. For example, it can be estimated that the measurement target is the same place by analyzing the distance information acquired by the distance measuring unit 102 and the image acquired by the image capturing unit 101. When it is estimated that the skin information acquisition terminal 103 is measuring the same position, the sound unit 161 described later may be used to emit a sound to notify the user 25.

FIG. 14 shows an example of the configuration of the skin information acquisition terminal 103 in this embodiment. Each part of the skin information acquisition terminal 103 will be described with reference to FIG. 14 together with a conceptual flow of processing. Hereinafter, unless otherwise specified, each unit constituting the skin information acquisition terminal 103 shall be controlled by a signal from the system control unit 14 connected by the system bus 17. As described above, the measuring device 100 receives the electromagnetic wave generating unit 2 that emits an electromagnetic wave so that the incident angle θ with respect to the measuring object 1 becomes a value near the Brewster angle, and the electromagnetic wave reflected from the measuring object 1. The arrangement of the receiving unit 3 is adjusted. In addition to the configuration in which the arrangement is adjusted as described above, the measuring device 100 is a signal processing unit that processes signals of electromagnetic waves received by the control unit 4 and the reception unit 3 that control the electromagnetic wave generation unit 2 and the reception unit 3. 5 is provided.

Information for identifying the user 25 and information regarding the measurement position (face, arm, etc.) are input via the input unit 40 (for example, a touch sensor, a button). After that, the measurement information acquisition unit 11 acquires the result of signal processing in the measurement device 100. As shown in Equation 2, the measurement value analysis unit 18 calculates the ratio of the reflection intensity from the user 25, which is the measurement object 1. The measured value analysis unit 18 refers to the past data accumulated in the data holding unit 160, and refers to the skin condition of the user 25 as time-series data including not only the measured value at a certain time but also the past history. Analyze changes. Here, for example, the data holding unit 160 may be added with numbers that identify a plurality of individuals to hold the measurement data of a plurality of individuals. The measurement value analysis unit 18 executes a process of analyzing the intensity of the received electromagnetic wave and the polarization-dependent characteristic based on the polarization component from the detection signal based on the electromagnetic wave received by the reception unit 3 of the measurement device 100.

Next, the image capturing unit 101 photographs the measurement site of the user 25. The image information acquisition unit 12 acquires the acquired image. Further, the distance to the measurement site is measured by the distance measurement unit 102, and the result of the measured distance is acquired by the distance information acquisition unit 13. These measurement results are stored in the data holding unit 160. The display processing unit 15 analyzes an image from the photograph taken and displays ultraviolet rays, drying, stress, etc. on the display unit 16. Further, the display processing unit 15 displays on the display unit 16 the result of analyzing the measured values of the measurement region resulting from the measurement device 100 of the inner skin moisture and skin condition (fineness of texture) with photographs 26 .. Here, the content displayed by the display unit 16 is, for example, a graph of a value such as a moisturizing amount and a change width, a radar diagram illustrated in FIG. 13B, and the like.

For longer-term monitoring, it is desirable to align the measurement positions and measure substantially the same site. Therefore, the system control unit 14 identifies the measurement site from the image result taken by the image capturing unit 101 last time or so far, calculates the measurement condition from the distance result of the distance measuring unit 102, and estimates the measurement position. The estimated measurement position may be displayed on the display unit 16 as in the measurement position marker 27 of FIG. 13B. In this case, the system control unit 14 functions as a measurement position estimation unit. Here, for example, in the skin information acquisition terminal 103 having the configuration shown in FIG. 13A, the user 25 cannot confirm the display unit 16 of the skin information acquisition terminal 103 while taking a picture. In such a case, the sound unit 161 is used to obtain information on the difference between the position indicated by the measurement position marker 27 acquired in the past and the position currently being photographed by the image capturing unit 101 to change the sound, for example, the pitch. It is also possible to notify a change in volume, a change in volume, a voice, or the like. In this case, the system control unit 14 functions as a calculation unit for calculating the difference between the position indicated by the past measurement position marker 27 and the position currently being photographed, and is as described above based on the result calculated by the system control unit 14. The measurement position is determined by executing the processing related to the difference. The sound unit 161 includes a voice processing processor and a speaker. In FIG. 14, the sound processing processor and the display processing unit 15 of the measurement information acquisition unit 11, the image information acquisition unit 12, the distance information acquisition unit 13, the measurement value analysis unit 18, the system control unit 14, and the sound unit 161 are shown. It is composed of processors and circuits constituting the skin information acquisition terminal 103. Further, the data holding unit 160 is composed of a memory constituting the skin information acquisition terminal 103.

Next, the operation flow of the skin information acquisition terminal 103 will be described with reference to the flowchart of FIG. First, the system control unit 14 controls the input unit 40 to execute an input step of presenting the user 25 with an interface for inputting identification information and information on the measurement site (S1501). For example, in S1501, an input screen may be displayed on the display unit 16 and the user 25 may be made to input predetermined information.

Subsequently, the system control unit 14 controls the image capturing unit 101 to execute a photographing step of photographing the measurement portion of the user 25 (S1502).

Next, the system control unit 14 controls the distance measurement unit 102 to execute a distance measurement step of measuring the distance between the measurement site of the user 25 and the skin information acquisition terminal 103 (S1503).

Next, the distance information acquisition step of acquiring the result of the measured distance by the distance information acquisition unit 13 is executed (S1504).

Further, in order to calculate the position of the measurement position marker 27, the measurement position with respect to the user 25 is calculated from the results of the positions of the electromagnetic wave generating unit 2 and the receiving unit 3 of the skin information acquisition terminal 103 and the distance obtained in S1504. The measurement position calculation step is executed (S1505). In S1505, it may be determined whether or not the calculated measurement position matches the past measurement position, and the sound output step of outputting the sound corresponding to the determination result may be further executed using the sound unit 161. In this case, the determination result in S1505 is synonymous with the estimation result of the measurement position. That is, the processing operation according to S1505 is also executed as a measurement position estimation step.

Further, when the distance information acquisition step is being executed in S1504, the electromagnetic wave generator 7 of the electromagnetic wave generating unit 2 is controlled from the system control unit 14 through the control unit 4 of the measuring device 100 in parallel. Based on this control, an electromagnetic wave irradiation step of irradiating the user 25 with an electromagnetic wave having an emitted electromagnetic wave intensity of I _{in and} an electromagnetic wave detection step of acquiring the intensity of the electromagnetic wave reflected by the user 25 are executed (S1506).

The measurement information acquisition unit 11 receives the electromagnetic wave intensity acquired in S1506 from the signal processing unit 5, and executes an analysis step of analyzing the reflected electromagnetic wave intensity information and the polarization information from the information received by the system control unit 14. Further, from the information acquired as shown in Equation 2, the absorption amount conversion step of adding the absorption amount and the polarization information at a certain time and converting the absorption amount in each polarization is executed (S1507). In the analysis stage of S1507, for example, it may be converted into a relative change in water content by comparing with the water content of the past data held in the data holding unit 160.

Next, the display processing unit 15 processes the analysis results of the measurement positions and intensity / polarization signals obtained from S1505 and S1507 and the image taken in S1502, and the display as shown in FIG. 13B is displayed on the display unit 16. The display step to be caused is executed (S1508).

The present invention is not limited to the above-described examples, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations. Further, it is possible to replace a part of the configuration of the embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration.

For example, if a monocular camera capable of simultaneously acquiring a color image and a distance image is used, separate functions such as the image capturing unit 101 and the distance measuring unit 102 can be realized by one function, which is compact and cost effective. The skin information acquisition terminal 103 can be realized. Further, the skin information acquisition terminal 103 is not limited to a dedicated terminal for measuring the state of the skin. For example, a small light source such as a resonance tunnel diode or a small detector such as a heterobarrier diode or carbon nanotube may be used for the electromagnetic wave generation unit 2 and the reception unit 3 of the skin information acquisition terminal 103. This makes it possible to combine it with a mobile phone (smartphone) having various information processing functions.

Further, although FIG. 14 shows an example of the configuration of the skin information acquisition terminal 103 in this embodiment, it is not necessary to perform all the analysis on the skin information acquisition terminal 103. For example, by using the skin information acquisition terminal 1031 provided with the communication unit 19 as shown in FIG. 16, it is possible to perform all or part of the complicated analysis on the external server 104. When using an external server, by adding the information integration unit 23 of the server 104 to the integration processing of S1508, the processing load of the display processing unit 15 can be reduced, and the effect of improving the frame rate of the display unit 16 can be expected.

As shown in FIG. 16, the skin information acquisition terminal 1031 that cooperates with the server 104 does not have a communication unit 19 that performs data communication with the server 104 and a measurement value analysis unit 18, and the same function is arranged on the server 104. .. The server 104 includes an image information analysis unit 21, an image diagnosis unit 22, an information integration unit 23, and a communication unit 20 in addition to the measurement value analysis unit 18. The measurement value analysis unit 18, the image information analysis unit 21, the image diagnosis unit 22, and the information integration unit 23 are composed of computers such as a CPU and a circuit that make up the server 104. The communication units 19 and 20 are configured by using hardware such as a network communication device, for example, a communication connector such as Wifi (registered trademark) or 8P8C modular connector.

The image information analysis unit 21 analyzes the image (image of the measurement object 1) acquired by the image information acquisition unit 12, and outputs the result.

The image diagnosis unit 22 diagnoses the image acquired from the image information acquisition unit 12 based on the output of the image information analysis unit 21.

The information integration unit 23 integrates and outputs information for display on the display unit 16 by using the diagnosis result of the image diagnosis unit 22 and the analysis result of the measurement value analysis unit 18.

Next, the operation flow of the skin information acquisition terminal 1031 will be described with reference to the flowchart of FIG. First, the system control unit 14 controls the input unit 40 to execute an input step of presenting the user 25 with an interface for inputting identification information and information on the measurement site (S1701). For example, in S1701, the input screen may be displayed on the display unit 16 and the user 25 may be made to input predetermined information.

Subsequently, the system control unit 14 controls the image capturing unit 101 to execute a photographing step of photographing the measurement portion of the user 25 (S1702).

Next, the system control unit 14 controls the distance measurement unit 102 to execute a distance measurement step of measuring the distance between the measurement site of the user 25 and the skin information acquisition terminal 1031 (S1703).

Next, the distance information acquisition step of acquiring the result of the measured distance by the distance information acquisition unit 13 is executed (S1704).

Further, a measurement position calculation step of calculating the measurement position of the user 25 from the results of the positions of the electromagnetic wave generation unit 2 and the reception unit 3 of the skin information acquisition terminal 1031 and the distance obtained in S1704 is executed (S1705).

Further, when the distance information acquisition step is being executed in S1704, the electromagnetic wave generator 7 of the electromagnetic wave generator 2 is controlled in parallel from the system control unit 14 through the control unit 4, and the electromagnetic wave of the emitted electromagnetic wave intensity I _in is used. Person 25 is irradiated. The measurement information acquisition step of acquiring the reflected electromagnetic wave intensity information and the polarization information due to the reflected electromagnetic wave of the emitted emitted electromagnetic wave intensity I _{in by the user 25 is executed (S1706).}

Next, the server output step of outputting the image taken by S1702, the calculation result of the measurement position by S1705, and the reflected electromagnetic wave intensity information and the polarization information obtained by S1706 to the server 104 through the communication unit 19 is executed. (S1707). After that, the server 104 executes an absorption amount conversion step of calculating the absorption amount at a certain time and adding the polarization information from the information acquired as shown in Equation 2 and converting the absorption amount into the absorption amount in each polarization. (S1708). In S1707, when data is output to the server 104 through the communication unit 19, part or all of the data held in the data holding unit 160 can be referred to and converted into a relative change in water content at the analysis stage of S1708. is there.

Subsequently, an information integration step of integrating display information is performed so that the server 104 can display the measurement position, the analysis result of the intensity / polarization signal, and the image taken in S1702 as illustrated in FIG. 13B. Execute (S1709).

Next, a transmission step of transmitting the display information integrated in S1709 from the server 104 to the communication unit 19 is executed (S1710), and finally, the result of processing the integrated information by the display processing unit 15 is displayed on the display unit 16. The display step to be performed is executed (S1711).

Further, in the skin information acquisition terminal 103 illustrated in FIG. 13, the image capturing unit 101 and the display unit 16 are arranged not on the same surface but on opposite surfaces. With this structure, when the user 25 is shooting with the image capturing unit 101, it is not possible to perform operations such as adjusting the measurement position while looking at the display unit 16. Therefore, as shown in FIGS. 18A and 18B, the image capturing unit 101 and the display unit 16 may be arranged on the same surface. With a configuration like the skin information acquisition terminal 103 shown in FIGS. 18A and 18B, the user 25 of the skin information acquisition terminal 103 can adjust the measurement position while looking at the display unit 16, which improves convenience. ..

Further, the display unit 16 of the skin information acquisition terminal 103 is confirmed while taking a picture, and the difference between the measurement position marker 27 and the current position taken by the image taking unit 101 by the function of the sound unit 161 while observing the displayed contents. Can also be operated to notify by sound. Further, if the user's feeling and the measured value are different, the required measurement width may be set by himself / herself.

Next, another embodiment of the non-contact internal measuring device according to the present invention will be described. FIG. 19 is a diagram showing a configuration of the measuring device 100a according to the present embodiment. The measuring device 100a according to the present embodiment has the same configuration as the measuring device 100 according to the first embodiment described above, and includes an electromagnetic wave generating unit 2, a receiving unit 3, a control unit 4, and a signal processing unit 5. There is. Since the features such as these configurations and arrangement conditions are the same as those of the first embodiment, detailed description thereof will be omitted.

The measuring device 100a according to the present embodiment further includes an image capturing unit 101, an image information acquiring unit 12, a distance measuring unit 102, a distance information acquiring unit 13, and a data holding unit 160. These configurations also have the same functions as the configurations of the same reference numerals provided in the skin information acquisition terminal 103 described in the third embodiment. Therefore, if a monocular camera capable of simultaneously acquiring a color image and a distance image is used for the image capturing unit 101, it is not necessary to mount the image capturing unit 101 and the distance measuring unit 102 as separate configurations.

As shown in the third embodiment, for example, the image capturing unit 101 takes a picture of the measurement portion of the user 25, and the image information acquisition unit 12 acquires the photographed image. Further, the distance of the user 25 from the measurement site is measured by the distance measurement unit 102, and the result of the measured distance is acquired by the distance information acquisition unit 13. In this embodiment, as shown in FIG. 19, the target distance between the measuring device 100a and the measuring object 1 is assumed to be “L”.

FIG. 20 is a diagram illustrating correction of a measurement position when the distance between the surface of the measurement object 1 (corresponding to the measurement site of the user 25) and the measurement device 100a deviates from the target distance L. As shown in FIG. 20A, when the measuring device 100a is too close to the measurement object 1 from the target distance L, the irradiation position of the electromagnetic wave deviates from the target irradiation position with respect to the measurement object 1. Further, as shown in FIG. 20B, the same applies when the measuring device 100a is far from the target distance L with respect to the measurement object 1.

Here, as shown in FIGS. 20A and 20B, “back” and “front” are defined assuming that the target distance L is the origin. The target distance L is a case where the optical axis of the image capturing unit 101 and the position where the electromagnetic wave emitted from the electromagnetic wave generating unit 2 is irradiated on the surface of the measurement object 1 (corresponding to the measurement site of the user 25). It is the distance between the measurement object 1 and the measurement device 100a.

For example, FIG. 20A illustrates a case where the distance between the measuring device 100a and the measuring object 1 becomes long and the measuring position shifts to the back side. FIG. 20B exemplifies a case in which the measurement device 100a and the measurement object 1 are brought closer to each other and the measurement position is shifted to the front side.

In the case illustrated in FIG. 20A, the position of the measurement position marker 27 can be calculated by X'= | L-L'| tan θ. Further, in the case illustrated in FIG. 20B, the position of the measurement position marker 27 can be calculated by X ”= | LL” | tan θ. It is necessary to correct the position of the measurement position marker 27 by using these "X'" and "X" ". The moving direction of the measuring device 100a can be determined by the symbols "X'" and "X".

Next, the operation flow of the measuring device 100a will be described with reference to the flowchart of FIG. First, the control unit 4 controls the image capturing unit 101 to execute a photographing step of photographing the measurement portion of the user 25 (S2101).

Next, the control unit 4 controls the distance measurement unit 102 to execute a distance measurement step of measuring the distance between the measurement object 1 (corresponding to the measurement site of the user 25 in the third embodiment) and the measurement device 100a. (S2102).

Next, the distance information acquisition step of acquiring the measured distance result by the distance information acquisition unit 13 is executed (S2103).

Further, from the results of the positions of the electromagnetic wave generating unit 2 and the receiving unit 3 of the measuring device 100a and the distance obtained in S2103 , either "front" or "back" as described with reference to FIGS. 20A and 20B. Calculate the amount of distance deviation when the distance shifts to. Then, the measurement position calculation step of calculating the measurement position from the distance deviation amount is executed (S2104).

Further, when the distance information is acquired in S2103, the control unit 4 communicates in parallel to control the electromagnetic wave generator 7 of the electromagnetic wave generation unit 2 and irradiates the user 25 with an electromagnetic wave having _{an emitted electromagnetic wave intensity I in.} Then, the electromagnetic wave intensity information and polarization information acquisition step for acquiring the electromagnetic wave intensity information and the polarization information reflected from the user 25 is executed (S2105).

Next, from the information acquired as shown in Equation 2, the absorption amount at a certain time is calculated, the polarization information is added, and the absorption amount conversion step of converting to the absorption amount in each polarization is executed (S2106). ). It should be noted that it may be converted into a relative change in water content by comparing with the water content of the past data held in the data holding unit 160 in S2106.

Next, the display processing unit 15 processes the measurement position obtained from S2104 and S2106, the analysis result of the intensity / polarization signal, and the image taken in S2101, and the display as shown in FIG. 18B is displayed on the display unit 16. The display step to be caused is executed (S2107).

Next, the control unit 4 executes an initial learning determination step for determining whether or not the current measurement is initial learning (S2108). This S2108 is a step for acquiring a reference value for observing the state (or time) change of the measurement object 1. The control unit 4 determines whether or not the past measured value is held in the data holding unit 160. If the past measured values are retained (S2108 / YES), the captured images, measured values, and intensity / polarization analysis results acquired in S2101 to S2107 are already stored in the data holding unit 160 as reference values. The information rewriting step of rewriting the information is executed (S2109).

On the other hand, if the past measured values are not retained in S2108 (S2108 / NO), the captured images, measured values, intensity / polarization analysis results acquired in S2101 to S2107 are stored in the data holding unit 160. A save step of saving the difference from the existing reference value is executed (S2110). In S2110, the captured image, the measured value, and the intensity / polarization analysis result acquired in S2101 to S2107 may be saved as a new reference value.

The present invention is not limited to the above-described examples, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations. Further, it is possible to replace a part of the configuration of the embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration.

Further, the skin information acquisition terminal 103 is not limited to a dedicated machine for skin measurement. For example, if a small light source such as a resonance tunnel diode or a small detector such as a heterobarrier diode or carbon nanotube is used for the electromagnetic wave generating unit 2 and the receiving unit 3, it can be combined with a smartphone. Further, when saving the data in S2110, for example, information such as the date and time, temperature, and weather obtained from the smartphone may be added.

Next, another embodiment of the internal measurement result display system according to the present invention will be described. The exhaled breath analysis terminal 105 according to the present embodiment is a device that uses human exhaled breath as a measurement target, and has a function of analyzing and displaying components contained in the exhaled breath in a non-contact manner using electromagnetic waves. It is known that the exhaled breath of a patient suffering from a specific disease contains a gas having a component different from that of a healthy person. For example, it is said that the exhaled breath of diabetic patients contains a large amount of acetone, and the exhaled breath of patients with chronic bronchitis tends to increase carbon monoxide. The concentrations of acetone and carbon monoxide can be measured using electromagnetic waves in the terahertz frequency band. Therefore, the breath analysis terminal 105 is set and used so as to emit an electromagnetic wave having a frequency suitable for the description to be measured. Moisture can also be measured using the breath analysis terminal 105.

FIG. 22 shows a usage mode of the breath analysis terminal 105. The breath analysis terminal 105 includes a breath measurement system 106 for analyzing the breath of the user 25. As shown in FIG. 22, the user 25 is a portable information processing terminal having a function of analyzing and displaying a component contained in the exhaled breath of the user 25 by exhaling toward the exhaled breath analysis terminal 105. Is.

23A and 23B are views showing the appearance of the breath analysis terminal 105. FIG. 23A is a schematic view of the side receiving the exhaled breath of the analysis target exhaled by the user 25. FIG. 23B is a schematic view of the side where the analysis result of exhaled breath is displayed. As shown in FIG. 23A, the breath analysis terminal 105 has an electromagnetic wave generation unit 2 and a reception unit 3 included in the breath measurement system 106 arranged on the side facing the user 25. The electromagnetic wave generating unit 2 and the receiving unit 3 are arranged so as to sandwich the opening of the gas flow path 31. In addition, the lens of the image capturing unit 101, which is a built-in camera, and the distance measuring unit 102 are also arranged.

Since the image capturing unit 101 and the distance measuring unit 102 are the same as those in the third embodiment already described, detailed description thereof will be omitted. The image capturing unit 101 can be applied, for example, an RGB camera having a sensitivity to a visible light wavelength, a camera having a sensitivity to infrared rays, and the like. In addition, an RGB camera having sensitivity to a wavelength of infrared rays to visible light, a wavelength of visible light to ultraviolet rays, or a wavelength of infrared rays to visible light to ultraviolet rays can also be applied. By taking an image in this way, it is possible to automatically switch the measurement mode between skin and exhalation in image recognition. Further, the user 25 may switch the measurement mode by himself / herself.

As shown in FIG. 23B, the breath analysis terminal 105 measures the components of the breath with the breath measurement system 106, and displays the analysis result on the display unit 16 as the breath measurement result, for example, the concentration of carbon monoxide or acetone. In addition to displaying the measured value measured by the breath measurement system 106 this time as a concentration, for example, the gas concentration measurement result 28 may be displayed on the display unit. Further, as shown in FIGS. 18A and 18B, in order to enable the user 25 of the breath analysis terminal 105 to perform measurement while observing the display (for example, concentration) of the display unit 16, the breath measurement system 106 and the image. The photographing unit 101 and the display unit 16 may have the same surface.

Further, while taking a picture and checking the display unit 16 of the breath analysis terminal 105, in order to inform the health precautions and the like, in addition to displaying the precautions and the data, the sound unit 161 is used. , The user 25 may be notified of the situation by sound. Further, if the user's feeling and the measured value are different, a necessary value may be set by himself / herself, and a caution or the like may be notified when the deviation from the set value is large.

FIG. 24 shows an example of the configuration of the breath measurement system 106 in this embodiment. As shown in FIG. 24, the exhaled breath measurement system 106 receives an electromagnetic wave generating unit 2 that irradiates an electromagnetic wave suitable for the exhaled air to be measured, a receiving unit 3 that receives an electromagnetic wave changed by the influence of the exhaled air, and an electromagnetic wave generating unit 2. A control unit 4 for controlling the unit 3 and a gas concentration measuring unit 29 for measuring the concentration of a predetermined gas contained in the exhaled breath based on the intensity of the electromagnetic wave received by the receiving unit 3 are provided.

The exhalation measurement system 106 has a gas flow path 31 that functions as an exhalation flow path, and a tubular gas concentration measurement space 32 that communicates with the gas flow path 31 and has a longitudinal direction between the electromagnetic wave generation unit 2 and the reception unit 3. , Equipped with. Further, the gas flow path 31 includes an exhaled air inflow flow path 31a and an exhaled air exhaust flow path 31b. The inflow flow path 31a and the exhaust flow path 31b are arranged so as to form a pair near the end portion in the longitudinal direction of the gas concentration measurement space 32. The opening between the inflow flow path 31a and the exhaust flow path 31b, that is, the communication point between the inflow flow path 31a and the gas concentration measurement space 32 of the exhaust flow path 31b is opened and closed by the exhaled air flow R. Each valve 30 is arranged. The inflow valve 30a arranged in the inflow flow path 31a opens inward due to the inflow of exhaled breath. Further, the exhaust valve 30b arranged in the exhaust flow path 31b is pushed by the gas staying inside and opens to the outside when the exhaled air flows into the gas flow path 31.

Here, the electromagnetic wave generated by the electromagnetic wave generating unit 2 uses a frequency that is easily absorbed by the gas component to be measured. For example, if the exhaled breath to be measured is water vapor, for example, 0.56 THz or 0.75 THz is suitable.

When the user 25 blows the exhaled air, the inflow valve 30a is pushed by the force of the exhaled air to open and flows into the inside of the gas flow path 31. At this time, if the electromagnetic wave is emitted from the electromagnetic wave generating unit 2, the receiving unit 3 receives the electromagnetic wave absorbed or attenuated by the exhaled breath component.

FIG. 25 shows an example of the configuration of the breath analysis terminal 105 in this embodiment. With reference to FIG. 25, each part of the breath analysis terminal 105 will be described together with a conceptual flow of processing. Hereinafter, unless otherwise specified, each unit constituting the breath analysis terminal 105 shall be controlled by a signal from the system control unit 14 connected by the system bus 17.

The exhaled breath measurement system 106 controls control of an electromagnetic wave generating unit 2 that irradiates an electromagnetic wave to the exhaled air that is a measurement target, a receiving unit 3 that receives an electromagnetic wave changed by the influence of the exhaled air, and an electromagnetic wave generating unit 2 and a receiving unit 3. A gas concentration measuring unit 29 for measuring the concentration of the gas concentration of the electromagnetic wave received by the unit 4 and the receiving unit 3 is provided. The electromagnetic wave generating unit 2 and the receiving unit 3 used in the exhaled breath measurement system 106 may be the same as the electromagnetic wave generating unit 2 and the receiving unit 3 used in the measuring device 100 described above. As the electromagnetic wave generating unit 2 and the receiving unit 3 used in the exhaled breath measurement system 106, the electromagnetic wave generating unit 2 and the receiving unit 3 which are different from those of the measuring device 100 may be used.

The gas concentration measured by the breath measurement system 106 is acquired by the gas concentration information acquisition unit 33 and the gas concentration value analysis unit 34. As shown in Equation 2, the gas concentration information acquisition unit 33 acquires gas concentration information from the ratio of the intensity of the irradiated electromagnetic wave and the reflected electromagnetic wave due to the change of the electromagnetic wave due to the influence of the exhaled breath of the user 25 which is the measurement object 1. To do. Then, the gas concentration value analysis unit 34 analyzes the gas concentration information and acquires the gas concentration.

The gas concentration value analysis unit 34 refers to the past data and the like accumulated in the data holding unit 160, and changes the gas concentration of the exhaled breath as time-series data including not only the measured value at a certain time but also the past history. Can also be analyzed. In this case, as shown in FIG. 23, the gas concentration measurement result 28 can be displayed on the display unit 16. Breath analysis terminal 105, gas concentration information acquisition unit 33, gas concentration value analysis unit 34, measurement information acquisition unit 11, image information acquisition unit 12, distance information acquisition unit 13, measurement value analysis unit 18, system control unit 14, sound The voice processing processor and the display processing unit 15 of the unit 161 are composed of a processor and a circuit constituting the breath analysis terminal 105. Further, the data holding unit 160 is composed of a memory constituting the breath analysis terminal 105.

The breath measurement system 106 can also measure the ratio of the reflection intensity while changing the frequency of the electromagnetic wave in a predetermined range, and can also perform a process of identifying the gas component from the peak frequency. Further, if the gas component can be identified, the gas concentration can be measured.

Next, the operation flow of the breath analysis terminal 105 will be described with reference to the flowchart of FIG. First, the system control unit 14 controls the image capturing unit 101 to execute a photographing step of photographing the measurement portion of the user 25 (S2601).

Next, the system control unit 14 controls the distance measurement unit 102 to execute a distance measurement step of measuring the distance between the measurement site of the user 25 and the breath analysis terminal 105 (S2602).

Next, the distance information acquisition step of acquiring the measured distance result by the distance information acquisition unit 13 is executed (S2603).

Further, a measurement position calculation step of calculating the measurement position of the user 25 from the results of the positions of the electromagnetic wave generation unit 2 and the reception unit 3 of the breath analysis terminal 105 and the distance obtained in S2603 is executed (S2604).

While executing the distance information acquisition step in S2603, in parallel, execute the measuring object determination step for determining whether the exhaled gas concentration is to be measured or the skin is to be measured from the image taken in S2601. (S2605). In S2605, when it is determined that the measurement target is gas (S2605 / Yes), the flow shifts to the flow for measuring the gas concentration. When it is determined in S2605 that the object to be measured is not gas (S2605 / No), the flow shifts to the flow of measuring the water content of the skin of the user 25.

In the flow for measuring the gas concentration, the system control unit 14 controls the electromagnetic wave generator 7 of the electromagnetic wave generation unit 2 through the control unit 4, and irradiates the user 25 with the _{emitted electromagnetic wave intensity I in.} Then, the control unit 4 controls the receiver 9 of the receiving unit 3 to execute the received electromagnetic wave intensity acquisition step of acquiring the electromagnetic wave intensity of the electromagnetic wave that has passed through the exhaled breath of the user 25 (S2608).

Next, an absorbance analysis step of analyzing the absorbance in order to calculate the gas concentration at a certain time is executed from the information acquired as shown in Equation 2 (S2609).

Here, for example, a case where the user 25 wants to measure carbon monoxide will be described in detail. When carbon monoxide is irradiated with electromagnetic waves in the frequency band of 10 GHz (0.1 THz) or more and 30 THz or less, its absorption spectrum appears in a steep state at equal intervals in the frequency band of about 0.4 THz to 2.5 THz. .. Therefore, for example, when an electromagnetic wave of 1.5 THz is used in the breath measurement system 106 described above, it is suitable for the measurement of carbon monoxide. Further, if an electromagnetic wave of 0.4 THz to 0.6 THz is used, it becomes possible to measure the absorption spectra of water vapor and carbon monoxide in a narrow frequency range.

It may be converted into a change in gas concentration at the analysis stage of S2609 by comparing with the past measured value held in the data holding unit 160. The display processing unit 15 processes the measurement position and the absorbance analysis result obtained from S2604 and S2609 and the image taken in S2601, and executes a display step of displaying the display as shown in FIG. 23B on the display unit 16 (S2610). ).

In the flow for measuring the amount of water in the skin, the system control unit 14 controls the electromagnetic wave generator 7 of the electromagnetic wave generation unit 2 through the control unit 4, and irradiates the user 25 with the _{emitted electromagnetic wave intensity I in.} Then, the control unit 4 controls the receiver 9 of the reception unit 3 to acquire the electromagnetic wave intensity information and the polarization information reflected from the user 25 (S2606).

Next, from the information acquired as shown in Equation 2, the absorption amount at a certain time is calculated, the polarization information is added, and the absorption amount is converted into the absorption amount in each polarization (S2607). Here, the display processing unit 15 processes the measurement position obtained from S2604 and S2607, the analysis result of the intensity / polarization signal, and the image taken in S2601, and displays as shown in FIG. 23B on the display unit 16. (S2610).

The present invention is not limited to the above-described examples, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations. Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration.

1 ... Measurement object, 2 ... Electromagnetic wave generator, 3 ... Receiver unit, 4 ... Control unit, 5 ... Signal processing unit, 7 ... Electromagnetic wave generator, 8 ... Lens, 9 ... Receiver, 10 ... Lens, 11 ... Measurement Information acquisition unit, 12 ... Image information acquisition unit, 13 ... Distance information acquisition unit, 14 ... System control unit, 15 ... Display processing unit, 16 ... Display unit, 17 ... System bus, 18 ... Measurement value analysis unit, 19 ... Communication Department, 20 ... Communication unit, 21 ... Image information analysis unit, 22 ... Image diagnosis unit, 23 ... Information integration unit, 25 ... User, 26 ... Photograph, 27 ... Measurement position marker, 28 ... Gas concentration measurement result, 29 ... Gas concentration measurement unit, 30 ... valve, 31 ... gas flow path, 32 ... gas concentration measurement space, 33 ... gas concentration information acquisition unit, 34 ... gas concentration value analysis unit, 40 ... input unit, 90 ... receiving element, 91 ... Adder, 91a ... Adder, 91b ... Adder, 91c ... Adder, 91d ... Adder, 100 ... Measuring device, 100a ... Measuring device, 101 ... Imaging unit, 102 ... Distance measuring unit, 103 ... Skin information acquisition Terminal, 104 ... server, 105 ... breath analysis terminal, 106 ... breath measurement system, 160 ... data holding unit, 161 ... sound unit, 1031 ... skin information acquisition terminal

Claims (11)

An electromagnetic wave irradiation unit that irradiates an electromagnetic wave toward the measurement target,
An electromagnetic wave receiving unit for detecting an electromagnetic wave reflected by the measurement target is provided.
The electromagnetic wave irradiation unit is arranged so that the incident angle of the electromagnetic wave with respect to the measurement target is close to the Brewster angle.
The electromagnetic wave receiving unit includes a plurality of electromagnetic wave detectors, and has a plurality of electromagnetic wave detectors.
The size of each of the electromagnetic wave detectors is equal to or less than the radius of the beam waist of the electromagnetic wave irradiated by the electromagnetic wave irradiation unit.
The electromagnetic wave detector is arranged so as to detect the intensity of an electromagnetic wave having a polarization different from that of the electromagnetic wave irradiated by the electromagnetic wave irradiation unit.
A non-contact internal measuring device characterized by the fact that . The non-contact internal measuring device according to claim 1.
The electromagnetic wave detector is arranged so as to detect polarization components in at least two directions including a component in a polarization direction perpendicular to the polarization direction of the electromagnetic wave irradiated by the electromagnetic wave irradiation unit. ,
A non-contact internal measuring device characterized by the fact that. An electromagnetic wave irradiation unit that irradiates an electromagnetic wave toward the measurement target,
An electromagnetic wave receiver that detects electromagnetic waves reflected by the measurement target, and
With
The electromagnetic wave irradiating unit is arranged so that the polarization component of the electromagnetic wave detected by the electromagnetic wave receiving unit is less than the polarization component of the electromagnetic wave irradiated by the electromagnetic wave irradiating unit. Including internal measuring device
An analysis unit that analyzes the intensity and polarization-dependent characteristics from the signal received by the electromagnetic wave reception unit, and
A measuring unit for measuring the distance to the measurement target,
A measurement position estimation unit that estimates the measurement position from the distance obtained from the measurement unit, and a measurement position estimation unit.
It further has a display unit for displaying a captured image to be measured, and has a display unit.
The measurement position estimated by the measurement position estimation unit from the distance obtained from the measurement unit is displayed on the display unit together with the analysis result of the analysis unit.
An internal measurement result display system characterized by this. The internal measurement result display system according to claim 3.
An image capturing unit for photographing the measurement target is further included.
An internal measurement result display system characterized by this. The internal measurement result display system according to claim 3.
A data holding unit that holds data related to the distance measured by the measuring unit and the measured position estimated by the measuring position estimation unit, the measuring position held by the data holding unit, and the currently photographed measurement position. It also has an arithmetic unit that calculates the difference between
The measurement position is determined based on the result of the calculation unit.
An internal measurement result display system characterized by this. The internal measurement result display system according to claim 3.
A sound unit that informs information related to the estimation result of the measurement position by sound, and
Further having an input unit for inputting the measurement position of the measurement target,
It has a function of notifying the information of the difference between the measurement position estimated by the measurement position estimation unit and the measurement position input to the input unit from the distance obtained from the measurement unit by the sound of the sound unit.
An internal measurement result display system characterized by this. An electromagnetic wave irradiation step that irradiates an electromagnetic wave toward the measurement target,
An electromagnetic wave detection step for detecting an electromagnetic wave reflected by the measurement target, and
Analysis steps to analyze the intensity and polarization-dependent characteristics from the received signal,
A measurement step for measuring the distance to the measurement target,
A measurement position estimation step that estimates the measurement position from the distance to the measurement target, and
It has a display step that displays the estimated measurement position together with the result in the analysis step.
In the electromagnetic wave irradiation step, the electromagnetic wave is irradiated so that the same component as the polarization component of the electromagnetic wave to be irradiated to the measurement target is reduced among the polarization components of the electromagnetic wave detected in the electromagnetic wave detection step.
A non-contact internal measurement method characterized by the fact that. The non-contact internal measurement method according to claim 7.
In the electromagnetic wave irradiation step, the electromagnetic wave is irradiated so that the angle of incidence on the measurement target is close to the Brewster's angle.
A non-contact internal measurement method characterized by the fact that. The non-contact internal measurement method according to claim 7.
Among the polarization components of the electromagnetic wave detected in the electromagnetic wave detection step, the polarization component in the direction perpendicular to the polarization direction of the electromagnetic wave irradiating the measurement target and the polarization component different from the polarization component in the vertical direction are included. Detects polarization components related to at least two or more polarization directions,
A non-contact internal measurement method characterized by the fact that. The non-contact internal measurement method according to claim 7.
Including shooting steps to shoot the measurement target,
In the display step, the estimated measurement position is displayed together with the result in the analysis step and the captured image of the measurement target.
A non-contact internal measurement method characterized by the fact that. The non-contact internal measurement method according to claim 7.
A sound output step that informs information of the estimation result in the measurement position estimation step by sound, and
Including an input step for inputting a measurement position in the measurement target.
In the sound output step, the sound indicated by the difference between the estimated measurement position and the input measurement position is output.
A non-contact internal measurement method characterized by the fact that.

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